Don't Think

On presentation, my friend can finally calm her nerves down and start to present. She said "I think..." but the lecturer cut her words impatiently: "Don't think. Just say"

The rest of presentations, none of us dare to mention "I think". The other time, that lecturer tells us, "I don't want you all to blindly believe on the theories. Tell me what you think. It shows me that you really understand." Our conclusion is she was having PERIOD at that time!